1978

5.3

2008

0.0

2003

6.0

2006

4.7

2002

6.0

1996

7.3

1995

6.0

1959

3.7

2001

3.0

2008

0.0

1984

6.6

2004

0.0

1995

7.5

2005

5.8

2004

7.5

2010

0.0

1988

5.5

2003

0.0